Sabaxichi satow



UNITED STATES PATENT OFFICE:

sAnAxIcHI sAr'ow, or SENIDAI, JAPAN.

PROCESS OF MANUFACTURING VEGETABLE PBOTEID. SUBSTANCES.

No Drawing.

corn, cereals, leguminous products or other proteid containing material.

The object of the invention is to provide vegetable proteid substances of improved quality and asimple, eflicient and economical process of manufacturing the same from vegetablesubstances, such ascereals, leguminous products or other material for food,

purposes orfor use in the manufacture of celluloid-like substances, linoleum-like substances, lacquer, varnish, artificial rubber, artificial leather and the like.

Further objects of the invention will appear more fully hereinafter.

In accordance with my invention I take the soja bean or other proteid containing substance, and dry it in any desired way, for example by placing the material in a revolving cylinder. In a great many uses of the proteid of the vegetable material, where a light color is not desired in the product to be manufactured from the, proteids, the skin or covering of the vegetable material em loyed may be retained, but Where a lig t color of the manufactured product is-desired, the outer skin of the material is first removed in any desired way.;

In accordance with my invention I next .flatten out the material employed whether soja bean or other vegetable substance, for example, by passing the same through rollers. This flattens the material and breaks down the cellular structures thereof, but -'does not remove or crush out the oil contained therein. If the-material selected contains a high percentage of oil, it is desirable and necessary to remove the oil from the mass, and therefore I next treat the mass inany desired manner to remove the oil. This may be done in many different ways. One efiiclent way is to remove the oil by treating the mass after being flattened, asabove ex- Specification of Letters Patent. Patented N 11, 1919, Application filed. November 25, 1916. Serial No. 133,306. I

oil of the mass is more readily and completely removed by the action of the benzin.

When the benzin has removed the oil, it is steaming is undesirable in that, due to the presence of moisture and high'temperatures, the proteids of the mass become injured, thus lowering greatly the quality and the yield of the proteids. I have found that it is essential for securing ood quality and the bestyield of the proteid s to avoid the presence of moisture and high temperatures as much as possible. This can be done either by using dry air of moderate temperature or vacuum. In either case the temperature of the mass under treatment should preferably be kept under 40 C. When air is used it may or may'not be heated and it is passed into the cylinders containing the benzintreated-mass and is then passed to a condenser to remove the benzin, and from there to a heater to be reheated if heated air is employed, and utilized over again. By thus circulating the air and at the same time agitating the mass I not only efiect a more complete removal of the benzin, but I also minimize the loss of the solvent, and also decrease the time and labor required in carrying out the process. The product of this last operation is called hereinafter by the term meal. The meal obtained by this process is perfectly white or slightly yellow in color, while that obtained by the usual method of steaming is dark yellow or brownish. The superior quality of the-proteid product, which is the object to whlch the present invention is directed, depends upon the superior quality of the meal. The meal procured as above described'is of superior'quality, and physically speaking, it possesses a pleasant odor; it possesses little or no tendency to mold, it has the appearance of being perfectly dry,and is white in color as above stated; while, chemically speaking, it retains the proteids more nearly operations in order to separate out the proteids in the form ofv preclpltates.

According to, one method, the meal is placed in a suitable vessel, and treated w th an alkaline solution, such as a dilute solution of caustic or carbonated alkali or ammonia.

- tation or to further purification.

'1 rilication, according to the conditions pre- X121 ing and the purpose aimed at. The puri all'lOll ot the 11nd can be effectively carout either by mechanical means, such as filtration, centrifuging orth'e like, or by p -chemical means, such as fractional pitation. fmctional solution of precipitated impure protcids, or the like, or, finally, by chemical means by convcrtin one or more components into other chenncal comls with different properties, which enlieir scpaiation. These means are numerous and diverse, but effective when used seq'iarately or in combination The liquid obtained by'purification as described is transparent water white or pale yellow in color. The precipitation of the liquid, whether purified or not, is carried out by means of a ferment such as lactic or acetic, thus precipitating the proteids as completely as possible.

According to another method the meal is treated with water which extracts a quantity of saccharocolloids, fibers, and the proteids' in the form of colloids or suspensoids.

The liquid is separated from the meal res idue and subjected eitherto direct precipi- If the purification is desired the liquid is made alkaline by adding caustic or carbonated alkali, or ammonia. which dissolves the suspensoids of proteids, and precipitation is then effected by lactic, acetic or other form of ferment.

The precipitation obtained as above described whether obtained by one or another of theabove described methods is allowed to settle and the supernatant liquid is drawn off, and the settled precipitate is then pressed into cakes, and if desired the cakes may be dried and powdered. The product obtained is termed hereinafter refined proteid? and is employed as food material either alone'or as a component of food preparations, or in the manufacture of a great variety of articles "such as non-inflammable celluloid-like substances, lacquer, varnish, artificial leather, artificial rubber, linoleumlike substances, and all-uses where vegetable proteid may be employed,

It will be observed that in carrying out my invention I avoid the ,use of formalin, the use of which results'in' the production of an exceedingly inert condensation product of proteids with formalin, which neither dissolves in water, organic solvents or aqueous solution of alkalis, acids, or salts, nor is acted upon by usual chemical or physical agents. It is obtained in a 'owder form and as it possesses neither p astici-ty nor flexibility nor adhesivencss, it therefore cannot be worked for manufacturing plastic and flexible celluloid-like substances or articles, and owing to its inability to be brought again into the form of a solution it cannot be worked for manufacturing various commercial products such as varnish, linoleum-like substances, lacquer, or artificial leather, artificial rubber and the like, and it is essential for manufacturing such last named useful articles, that the proteids are, or can be changed into a form which is, soluble in organic or inorganic solvent, and easily acted upon by chemical or physical agents.

It will also be observed that I avoid the use of coagulants such as aluminum sulfate or like metal compounds for obtaining the proteid product according to my invention. When such a metal compound is used the proteids pass into a combination with metal and form an inert and insoluble compound, which is similar in its undesirable properties to the condensation products just described, and cannot therefore be employed in the manufacture of celluloid-like substances, varnish, linoleum, lacquer, and the like, nor artificial leather, rubber and the like.

The proteid product, obtained according to my invention, when in wet condition,-1s white in color, tasteless, odorless, plastic and sticky when kneaded, while, in dry condition, it is white or pale yellow in color,

tasteless, odorless and plastic, but does not become sticky even when kneaded with water, except when an alkali, an acid or other proteid solvent is also added. Chemically, the proteid product obtained as above described, whether in wet or in dry condition, shows all characteristic reactions of vegetable proteids, is soluble in all proteid solvents, and when dissolved in alkalis and acids, respectively, it forms alkali salts and acid salts, respectively. It evolves ammonia gas when heated with hydroxid of alkali, or of alkaline earth metals, and changes into a yellow mass .when treated with concentrated nitric acid. It is easily rendered transparent, is adhesive, and can be easily molded into permanent shape. When dissolved in suitable solvents it forms derivations of proteid which are flexible, elastic, adhesive, tough and strong, and which do not crack while drying, thus producing products well suited for the manufacture of various useful commercial articles where flexibility, elasticity, adhesiveness, toughness and strength are desirable qualities.

Having now described in detail the process of obtaining vegetable proteid in accordance with my invention, what I claim as new and useful, and of my own invention is,-

1. In the production of vegetable proteids, the process which consists in first breaking down the cellular structure of proteid eontaining material and removing any oil constituent therefrom, then extracting in aliquid solution and without heat the proteidal contents of the mass and finally precipitating the proteids from the liquid by a ferment.

2. In the production of vegetable prote'ids, the process which consists in first removing any oil from proteid containing material, then extracting in a liquid solution and without heat the proteidal contents of the mass and finally precipitating the proteids from the liquid by a ferment.

3. In the production of vegetable proteids, the process which consists in extracting in a liquid solution and without heat the proteidal contents of the proteid containing material, then purifying the extract into a transparent clear solution and finally precipitating the proteids from the purified solution with a ferment.

4. In the production of vegetable proteids, the process which consists in extracting with an alkaline solution and without heat the soluble proteids from proteid containing material from which the oil content has been removed andthen precipitating the proteids from the solution by a ferment.

5. In the production of vegetable proteids, the process which consists in extracting Without heat the soluble proteids from proteid containing material with an'alkaline solution, then purifying the extract into a transparent clear solution and finally precipitating the proteids from the purified solution with a ferment.

6. In the production of vegetable proteids, the process which consists in extracting without heat the soluble proteids from proteid containing material from which the oil content has been removed with a dilute solution of caustic or carbonated alkali or ammonia, and then precipitating the proteids with ferment.

7. In the production of vegetable proteids, the process which consists in extracting without heat the soluble proteids from pro teid containing material with a dilute solution of caustic or carbonated alkali or am monia, then purifying the extract into the condition of a transparent clear solution and finally precipitating the proteids from the purified solution with'a ferment.

8. In the production of vegetable proteids, the process which consists in crushing the cellular structure of proteid containing material and removing the oil content therefrom, then extracting without heat the proteidal contents contained in the crushed mass and finally precipitating with a ferment the proteids contained in the liquid.

9. In the production of vegetable proteids, the process which consists in crushlng the cellular structure of proteid containing material, then removing any oil from the crushed mass, then extracting without heat the proteidal contents of the mass, and finally precipitating with a ferment the proteids contained in the liquid.

10. In the production of vegetable proteids, the process which consists in crushing the cellular structure of proteid containing material and removing any oil content therefrom, then extracting without heat the proteidal contents of the crushed mass, then purifying the resulting liquid into a trans parent clear solution by the removal of impurities therefrom, and finally precipitating with a ferment the proteids contained in the purified liquid.

In testimony whereof I have hereunto set my hand on this 16th day of November,

'A. D. 1916. s

SAD-AKIGHI SATOW. 

